His teacher worried that the student spent too much time on the computer and not enough time _______.
-He seems to be doing nothing, buthe is just waiting for his chance.
-What a pity! He got nothing in ______ for his hard work..
-They were so far away that I couldn’ttheir faces.
-On hearing the sound, the birds flew away in every.
-She often gets up late,when she has no classes in the morning.